Adhesive-applying apparatus



Dec. 26, 1944. w, PUNTE 2,365,775

ADHESIVE APPLYING APPARATUS Filed March 8, 1944 I 2 Sheets-Sheet 1Z'mnentor WilliamF. Punce.

(Ittornegs Dec. 26,1944. I w. F. PUNTE 2,365,775

ADHESIVE APPLYING APPARATUS Filed March 8, 1944 '2 Sheets-Sheet 2Snventor Willi am E Purfize Qttornegs Patented Dec. 26, 1944ADHESIVE-APPLYING APPARATUS William F. Punte. Passaic, N. .I.. assignorto Continental Can Company. Inc.. New York, N. E, a corporation of NewYork Application March 8, 1944, Serial No. 525,613

Claims. (CI. 9149) r ed claims, and the several views illustrated in theThe invention relates generally to the art-of manufacturing p percontainers and primarily seeks to provide a novel apparatus adapted forsimultaneously applying like or different adhesives to the internal andextema1 wall portions at the ends of cylindriform paper containers forbonding and sealing end closures thereon.

In the manufacture of paper containers the ends thereof are closed andsealed by paper or metallic end closures. It is common practice to.accompanying drawings.

Figure 1 is a front elevation illustrating an apparatus embodying theinvention.

Figure 2 is a plan view illustrating the apparatus shown in Figure 1.

form an adhesive union between the container bodies and the endclosures, and very often the adhesive is applied to the container bodiesat the inner and outer wall portions thereof atthe ends. Very often theadhesive applied to the inner wall portions is selected because of itssealing qualities, and the adhesive applied to the outer wall portionsis selected for its bonding qualities. It is a purpose of the presentinvention to provide a novel adhesive applying apparatus capable ofsimultaneously applying to the inner and outer container body end wallportions diiferent adhesives selected respectively for their sealing andbonding qualities.

- In its more detailed nature the invention resides in providing anapplicator roll receiving adhesive from one reservoir, a secondapplicator roll receiving adhesive from a second reservoir, a pair ofsupporting rolls for supporting a cylin driform container body inposition for placing an end thereof between said rolls so that oneengages inside and the other outside the same, and means for rotatingthe container body.

An object of the invention is to provide an apparatus of the characterstated in which the supporting'rolls are freely rotatable and thecontainer body rotating means comprises a driving roll engaging the bodyand mounted on the same shaft with the applicator roll which engagesthe- With the above and other objects in view that.

will hereinafter appear, the nature of the invention will be moreclearly understood by reference to the following detailed description,the append Figure 3 is a central vertical cross sectional view.

Figures-i is a fragmentary plan view illustrating the mounting ofthedoctor blade which 00- operates with the lower adhesive applicatorroll.

Figure 5 is a fragmentary plan view illustrating a portion of the upperadhesive reservoir and the manner in which the upper adhesive applicatorroll may be removed from its mounting.

In the example of embodiment of the invention herein disclosed, theapparatus is formed to include a frame I to which an adhesiv reservoir 8is secured as at I. See Figures land 3. The reservoir may have a waterjacketing 8 through which warm water may be circulated through an inletduct 9 and outlet duct to.

Two shafts II are mounted in bearings l2, said bearings being providedon the frame ii and on the reservoir 6, and said shafts serve to freelyrotatably support a pair of container body supporting roll it. It willbe observed by reference to Figures 1, 2 and 3 of the drawings that thevcylimiriform paper container body M which is to 'have adhesive appliedto the inner and outer wall portions thereof adjacent its end can besupported upon and between said rolls l3. The rolls H are provided withflanges it which serve as abutments for a container body mounted on the"roller and prevent endwise movement thereof.

The reservoir 8 is provided with an extension l8 shaped in the mannerclearly illustrated in Figures 1 and 3 to allow a container body to bereadily mounted thereover. An applicator roll I1 is mounted within thereservoir extension l6 and'is adapted to pick up adhesive from theinterior of the reservoir and apply it to the internal wall portion ofthe container body at the end thereof in the manner clearly illustratedin Figure 3. The roll I! is mounted on a shaft I8 which is rotatable ina frame bearing l9, and it will be observed that the roll is tapered atits end, so as to facilitate mounting of a container body thereover,andalso is equipped with a flange 20 which serves as an end abutment forthe container body and also to apply adhesive to the end extremity ofsaid body. It will be apparent by reference to Figures 2 and 3 of thedrawings that the roll flange 2n cooperates with t e 0 1 flanges 15 onthe supporting rolls i3 in holding the container bodies It against anendwise movement while adhesive is being applied thereto. The adhesivein the reservoir 3 is designated 2 I.

An arm 22 is pivotedly mounted as at 23 on the frame I in the mannerclearly illustrated in Figures 1 and 2, and this arm is equipped with abearing 2| in which a drive shaft 25 is rotatably mounted. A driver roll26 is mounted on the shaft 25 in position for engaging container bodiesmounted for having adhesive applied thereon, and said roll contacts thecontainer bodies centrally over the supporting rolls I3 in the mannerclearly illustrated in Figure 1. It will be obvious that the contact ofthe rotating roll 28 with the outer walls of the container body I 4 willcause them to rotate on the freely rotatably-mounted supporting rollsl3.

A second adhesive reservoir 21 is provided, and this reservoir issecured to the arm 22 by means'of a U-shaped bracket 23. The reservoir21 is provided with a full bearing 29 for rotatably receiving the driveshaft 25, and an applicator roll 30 is secured on said shaft in thespace intervening the bearing 29 and a half bearing member 3| alsocarried by the reservoir 21. The roll 30 is equipped with a hub portion32 which has rotative bearing in the half bearing 3|, and it will beobserved by reference to Figures 1 and 2 of the drawings that theperiphery of the roll 30 extends into the reservoir 21 through the spaceintervening the full bearing 29 and the half bearing 3| so as to pick upadhesive therein and apply it in the manner illustrated in Figure 3 tothe external surface of the container body at the end thereof. It willbe observed by reference to Figure 1 that by swinging the arm 22upwardly, the reservoir 21, the shaft 25, the driver roll 28 and alsothe applicator roll 30 will be raised, and suitable space will beprovided for facilitating the mounting or removal of a container body H.

As in the case of the lower reservoir 3, the upper reservoir 21 isprovided with water jacketing 33, and warm water may be circulatedthrough the jacketing by provision of an inlet duct 34 which may beconnected by a flexible duct with the outlet duct IQ of the lowerreservoir, and an outlet duct 35 which may lead back to the warm watersource (not'shown) See Figure 1.

A doctor blade 38 is adjustably mounted on the lower reservoir in themanner clearly illustrated in Figures 1 and 4, and said blade is shapedand positioned to cooperate with the applicator roll H in determiningthe amount of adhesive to be carried into contact with the internalsurface of container body H by the periphery of said roll and thecontainer body end engaging fiange face. A doctor blade 31 issimilarlymounted on the upper reservoir 21 and serves a like purpose ofcontrolling the amount of adhesive dragged out of the side opening inthe reservoir by the applicator roll '30 and applied thereby to theexternal surface of the container body Hi.

In Figure of the drawings the applicator roll receiving spaceintervening the full bearing 23 and the half bearing 3| and throughwhich adhesive is dragged by the applicator roll 30 is indicated at 38,and it will be observed that by reason of the provision of said openingand the half bearing 3|, the applicator roll 30 may be readily removedby withdrawing the drive shaft 25 in the manner indicated by the arrowin Figure 5, and then withdrawing said roll latterly out of the space 33in the manner indicated by the arrow at the right in said Figure 5.-

Rotation can be applied to the drive shaft 25 alone, if desired, and byany approved means (not shown), or the shafts 25 and I3 may be coupledto rotate in unison by a spur gear couple such as is shown at 33 inFigure 3.

In the practical operation of the apparatus, the lower and upperreservoirs 3 and 21 are supplied with suitable adhesive which may be thesame in t p or adhesivesof different types may be provided in therespective reservoirs. For example, the adhesive in the reservoir 3, tobe applied to the inner surface of the container body and the endextremity thereof, may be selected for its sealing qualities, whereasthe adhesive in the upper reservoir 21, to be applied to the externalsurface of the container body at the end thereof, may be selected forits bonding qualities. By lifting the arm 22 the applicator rolls 3!!and I! may be separated and the driver roll 23 lifted in a manner forfacilitating the mounting of a container body It on and between thesupporting rolls ,|3 with the open inner end thereof extending over theapplicator roll l1 and the reservoir projection I6. By reason of theprovision of the taper on the applicator roll II, the mounting ofcontainer bodies thereover is facilitated.

After the container body has been suitably mounted on the supportingrolls l3, the arm 22 is lowered so as to lower the applicator roll 3|!and driver roll 28 onto the external surface of the container body. Withthe parts in this position rotation is imparted to the container body I4and to the applicator rolls l1 and 33 and the applicator rolls l1 and 30will apply the adhesive to the inner and outer wall portion of thecontainer body at the end thereof, the lower roll l1 applying adhesivefrom the reservoir I to the interior of the container body at the endextremity thereof, and the roll 30 applying adhesive from the upperreservoir 21 on the external surface of said container body at the endthereof.

It is to be understood that the structural details and the arrangementof parts herein disclosed may be variously modified without departingfrom the spirit and scope of the invention as defined in the appendingclaims.

Iclaim:

1. In apparatus of the character described, a first adhesive reservoir,a second adhesive reservoir, a first applicator roll supplied with asurface coating of adhesive from said first reservoir, a secondapplicator roll supplied with a surface coating of adhesive from saidsecond reservoir, a pair of supporting rolls disposed in parallel spacedrelation to support thereon and therebetween a container body inposition for having adhesive applied to internal and external wallportions at one end thereof by engagement between said rolls with thefirst roll engaging internally of the container body and the second rollengaging externally of said body, and means for rotating said containerbody.

2. In apparatus of the character described, a first adhesive reservoir,a second adhesive reservoir, a first applicator roll supplied with asurface coating of adhesive from said first reservoir, a secondapplicator roll supplied with a surface coating of adhesive from saidsecond reservoir, a pair of freely rotatable supporting rolls disposedin parallel spaced relation to support thereon and therebetween acontainer body in position for having adhesive applied to internal andexternal wall portions at one end thereof by enassume Basement betweensaid rolls with the first roll engaging internally of the container bodyand the second roll engaging externally of said body, and a driving rollengagingthe container body contrally oversaid supporting rolls forimparting rotation to the container body.

3. In apparatus of the character described, a first adhesive reservoir,a second adhesive reservoir, a first applicator roll supplied with asurface coating of adhesive from said first reservoir, a secondapplicator roll supplied with a surface coating of adhesive from saidsecond reservoir, a pair of supporting rolls disposed in parallel spacedrelation to support thereon and therebetween a container body inposition for having adhesive applied to internal and external wallportions at one end thereof by engagement between said rolls with thefirst roll engaging internally of the container body and the second rollengaging exter nally of said body, and means for rotating said containerbody, said first roll having a tapered end facilitating the mounting ofa container body thereover and having a flange forming an end abutmentfor the end of a container body being coated and also effective to applyadhesive from' spaced relation to support thereon and therebetween acontainer'body in position for having adhesive applied to internal andexternal wall portions at one end thereof by engagement between saidrolls with the first roll engaging internally of the container body andthe second roll engaging externally of said body, means for rotatingsaid eontainer body, means stationarily mounting said first reservoir,said supporting rolls and said first applicator roll, and means forsupporting said second reservoir, said second applicator roll and saidbody rotating meansfor movement in a direction for spacing theapplicator rolls and freeing the container body so as to facilitateremoval of the adhesive coated container body.

5. In apparatus of the character described, a

, first adhesive reservoir, a second adhesive reservoir, a firstapplicator roll supplied with a surface coating of adhesive from saidfirst reservoir,

a second applicator roll supplied with a surface coating of adhesivefrom said second reservoir, a pair of supporting rolls disposed inparallel spaced relation to support thereon and therebetween a containerbody in position for having adhesive applied to internal and externalwall portions at one end thereof by engagement between said rolls withthe first roll engaging internally of the container body and the secondmoval ofthe adhesive coated container body 6. In apparatus of thecharacter described, a first adhesive reservoir, 9. second adhesivereservoir, a first applicator roll supplied with a surface coating ofadhesive from said first reservoir, a second applicator roll suppliedwith a surface coating of adhesive from said second reservoir, a pair offreely rotatable supporting rolls disposed in parallel spaced relationto support thereon and therebetween a container body in position forhaving adhesive applied to internal and extemai wall portions at one endthereof by engagement between said rolls with the first roll engaginginternally of the container body and the second roll engaging externallyof said body, a driving roll engaging the container body centrally oversaid supporting rolls for imparting rotation to the container body, anda driver shaft supporting the driving roll and also the secondapplicator roll.

7; In apparatus of the character described, a

first adhesive reservoir, a second adhesive reservoir, a firstapplicator roll supplied with a surface coating of adhesive from saidfirst reservoir, a second applicator roll supplied with a surfacecoating of adhesive from said second reservoir,

a pair of freely rotatable supporting rolls disposed in parallel spacedrelation to support thereon and therebetween a container body inposition for having adhesive applied to internal and external wallportions at one end thereof by engagement between said rolls with thefirst roll engaging internally of the container body and the second rollengaging externally of said body, means statlonarily mounting said firstreservoir, said supporting rolls and said first applicator run, adriving roll engaging the container body centrally over said supportingrolls for imparting rotation to the container body, a driver shaftsupporting the driving roll and also the second applicator roll, and aswingably mounted arm supporting said second reservoir, said secondapplicator roll, and said driving roll for movement in a. direction forspacing the applicator rolls so as to facilitate removal of the adhesivecoated container body.

8. In apparatus of the character described, a

first adhesive reservoir, a second adhesive reservoir, a firstapplicator roll supplied with a surface coating of adhesive from saidfirst reservoir, a second applicator roll supplied with a surfacecoating of adhesive from said second reservoir, a pair of freelyrotatable supporting rolls disposed in parallel spaced relation tosupport thereon and therebetween a container body in position for havingadhesive applied to internal and external wall portions at one endthereof by engagement between said rolls with the first roll engaginginternally of the container body and the second roll engaging externallyof said body, a driving roll engaging the container body centrally oversaid supporting rolls for imparting rotation to the container body, adriver shaft supplicator roll, and means coupling the driver shaft andthe first applicator roll for rotation in unison.

9. In apparatus of the character described, a first adhesive reservoir,a second adhesive reservoir, a first applicator roll supplied with asurface coating of adhesive from said first reservoir, a secondapplicator roll supplied with a surface coating of adhesive from saidsecond reservoir, a pair of freely rotatable supporting rolls disposedin parallel spaced relation to support there- -on and therebetween acontainer body in position for having adhesive applied to internal andexternal wall portions at one end thereof by eneasement between saidrolls with the first roll engaging internally oi the container body andthe second roll engaging externally of said body, a driving rollengaging the container body centrally over said supporting rolls forimparting rotation to the container body, and a driver shaft supportingthe driving roll and also the second applicator roll, said secondreservoir having a bearing for said driver shaft and an open halfbearing and a space intervening said bearings and communicating with theinterior of said second reservoir, and said second applicator rollhaving a hub portion mounted in said half bearing, said secondapplicator being withdrawable laterally out of said space and said hall.bearing upon withdrawal of the driver shaft axially therethroush.

10. In apparatus of the character described, a first adhesive reservoir,a second adhesive reservoir, a first applicator roll supplied with asurface coating of adhesive from said first reservoir, a secondapplicator roll supplied with a surface coating of adhesive from saidsecond reservoir, a pair of freely rotatable supporting rolls disposedin parallel spaced relation to support thereon and therebetween acontainer body in position for having adhesive applied to internal andexternal wall portions at one end thereof by engagement between saidrolls with the first roll engaging internally of the container body andthe second roll engaging externally of said body, means stationarilymounting said first reservoir, said supporting mils and said firstapplicator roll, a driving roll engaging the container body centrallyover said supporting rolls for imparting rotation to the container body,a driver shaft supporting the driving roll and also the secondapplicator roll, and a swingably mounted arm supporting said secondreservoir, said second applicator roll, and said driving roll formovement in a direction for spacing the applicator rolls so as tofacilitate removal of the adhesive coated container body, said secondreservoir having a bearing for said driver shaft and an open halfbearing and a space intervening said bearings and communicating with theinterior of said second reservoir, and said second applicator rollhaving a hub portion mounted in said half bearing, said secondapplicator being withdrawable laterally out of said space and said halfbearing upon withdrawal of the driver shaft axially therethrough.

WILLIAM F. PUNTE.

